Rationale: Diesel Particulate Matter is classified as Probably Carcinogenic to Humans by IARC,
and Reasonably Anticipated by NTP based on sufficient evidence of increased lung tumors
in rats. Gasoline engine emissions are classified at possibly carcinogenic by IARC.
Emissions from compressed natural gas engines have not been tested to in the bioassay
to my knowledge. CNG engines emit lower mass than diesel, but similar number of particles.

NTP Principles:
not specified

Status: Received

Agents and Status

The following information relates to the specific agent and may include history from
earlier or later nominations for this same agent.